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X-ray Machine for Auto Parts

UNI X-ray is your perfect auto-parts x ray machine manufacturer in China. If you require an x-ray machine for auto parts inspection, always call us.

  • Allow to verify and improve production quality of each workpiece
  • Be able to inspect different types and materials of auto parts and castings
  • Offer high definition imaging to detect inner defects with non-destructive method
  • Identify 100% defect-free of each workpiece for ensuring high reliability
  • Minimizes the risk of product recalls
  • The software is user-friendly, and really easy to operate without expertise

Auto Parts Inspection X-ray Machine for Sale

What if you could have all your auto parts accurately inspected for errors during manufacture? 

Standards for safety are pretty high in the automotive industry with different countries trying to make sure that automotive products are manufactured to the highest standards of quality to ensure the safety of the country’s population that will form the users.

Thus, if you are serious about taking the quality assessment of your auto parts to the next level, have a careful check of the x-ray machine we have!

Why Global Clients Choose Us?

20 Years of Expertise

We have over 18 years of experience that specializes in X-ray Technology.

Excellent Image Quality

Uni X-ray produces X-ray machines that offer excellent and ultra-sharp image qualities.

High Degree of Safety

Our X-ray machine is one of the safest choices you can make because it ensures maximum safety.

Extremely User-friendly

Uni X-ray produces machines that have an easy mode of operation.

Services We Provide

Created by potrace 1.16, written by Peter Selinger 2001-2019

Installation Guideline

We offer you free and quick installation instruction with online video tutorials. The tutorial explains detailed and important steps to get your machine started. Any questions about installation, feel free to contact us!

Created by potrace 1.16, written by Peter Selinger 2001-2019

Customer Support

We work to provide the best customer support. We are here to help you solve any problems you may encounter. Feel free to contact us Uni X-ray team online via video chat, phone, or email anytime.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Quick Delivery

Online equipment shipped within 45 days and offline equipment within 20 days after payment confirmation. The customized machine is supposed to be deliveded in less than 90 days.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Warranty Service

Uni X-ray machine comes with a one-year warranty. In the warranty period, machine defects, repairs, and part changes are free. Unexpected damage issues due to shipment, handling, storage, abuse, or misuse will not be covered.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Installation Guideline

We offer you free and quick installation instruction with online video tutorials. The tutorial explains detailed and important steps to get your machine started. Any questions about installation, feel free to contact us!

Created by potrace 1.16, written by Peter Selinger 2001-2019

Customer Support

We work to provide the best customer support. We are here to help you solve any problems you may encounter. Feel free to contact us Uni X-ray team online via video chat, phone, or email anytime.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Quick Delivery

Online equipment shipped within 45 days and offline equipment within 20 days after payment confirmation. The customized machine is supposed to be deliveded in less than 90 days.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Warranty Service

Uni X-ray machine comes with a one-year warranty. In the warranty period, machine defects, repairs, and part changes are free. Unexpected damage issues due to shipment, handling, storage, abuse, or misuse will not be covered.

X-Ray Machine for Auto Parts: the Complete Guide

Table of Contents

1. What is an X-ray Machine for Auto Parts Inspection?

X-ray machines use radioactive energy to penetrate auto parts mostly during manufacturing to expose any hidden flaw that might be otherwise invisible to the naked eye or other methods of inspection.

X-ray beams are released from an X-ray tube within the X-ray auto-machine on the inspected sample. A part of the radiation is absorbed by the auto part that is inspected and the remaining radiation passes on to screen where the remaining radiation forms an image.

The image can be analyzed for all sorts of errors including, dimensional errors, size, thickness, and welding errors.


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2. Why do you Require X-Ray Inspection for Auto Parts?

To ensure a car with utmost safety and long-term operation, you require inspection on many automotive parts such as engine, pistons, piston rings, steering wheel, brake braking system, connecting rods, shock absorber rods, car wheels, etc. 

X-ray machine for auto parts, based non-destructive testing technology, produces varied grayscale display images through objects of diverse densities and thicknesses to assess the quality of the interior parts of the object. It is designed to inspect any automotive defects without any destruction.

If there is any crack or bubble, it will directly affect the safety of the car. Hence, a thorough inspection of all these automotive parts is mandatory. It is an important step to identify internal and external defects and  make greater quality control.

3. What are some Benefits of the Automotive X-Ray Machine? 

The X-ray auto machine can help to examine the internal composition of auto parts that is often difficult for other methods to identify accurately. No wonder it has become a popular method of quality assessment within the automotive manufacturing industry. But that’s not all. Here is a list of other beneficial uses of X-ray auto machines.

  • Non-contact and Non-destructive

There is no need for contact with X-ray auto parts which makes inspection easy and convenient. Also, the X-ray inspection method is a non-destructive means of identifying errors which means that test samples that are without defects don’t have to be condemned after carrying out the test. This significantly reduces cost manufacturing.

  • Easy to Operate

The machine is not difficult to operate and although an operator will need to take trainings before using the machine, the time taken during training is not so long as 

  • Better Image Quality

X-ray machines produce high quality images that help in the accurate analysis of defects if present in any automotive components.

  • Fast Operation Speed 

It takes a very short time to carry out testing using the X-ray machine and there is often no need for assigning a separate time for the inspection of auto parts as the machine can be effectively integrated into the auto manufacturing line. This process increases the speed of manufacturing without any down time trying to inspect manufactured parts before sending them out to dealers.

  • Facilitate Accurate Internal Part Analysis

Because the X-ray can penetrate and reveal hidden internal parts of a component, it ensures that accurate detection and analysis of any flaw is achieved. 

  • Cut Down the Operational Cost

X-ray is a cost-effective inspection method as it cuts out all the unnecessary extra cost that manufacturers encounter using other inspection methods. For instance, a destructive inspection method usually must sacrifice a sample that cannot be useful even if no defect was found in the sample as it will be destroyed during the inspection test.

  • Minimize the Risk of Product Recalls

X-ray machines significantly reduce the chances of a product recall as no manufacturer likes recalling a product after it’s been sent to the dealer for sale. The cost of recall is usually extremely high and can lead to a huge loss for the company. That’s not all. Recall often gives a company a bad reputation, leaving users with the impression that the company is a producer of substandard product and often users may move on to another product as they might have lost faith in your company. Also, litigation and damages might result if the product had caused harm to a user before it was recalled.


4. How can X-Ray Machines be Applied in the Automotive Industry?

Cars and articulated vehicles are composed of many parts all of which must be subjected to quality checks if they must be included into the final product. Here are some of these critical parts. 

  • Tire 

Tires are critical to the motion of automobiles and a low-quality tire can make a vehicle very unsafe and even impossible for transportation. The X-ray machine can check if there are defects in tires during manufacture including dimensions, thickness, pores, impurities, and threading errors. 

  • Wheels 

The quality of wheel hubs as well as the wheels themselves is a crucial thing that needs to be precisely inspected for errors during manufacture. The X-ray machine can inspect alloy wheels for alloy composition and defects like cracks and improper hole sizes, and chipping of the wheel.

  • Cast Parts 

Many auto parts are made from cast materials and are inspected for the proper composition of the constituents used during casting. The X-ray machine ensures the cast constituents are in the right amount and their dimensions are correct.

  • Electro-Mechanical Parts

Modern automobiles are becoming highly electronic and their combination with the mechanical parts is also becoming commonplace and must follow the design during manufacturing. X-ray machines help identify any imperfection in the arrangement of electromechanical parts that are not according to design during manufacture.

X-ray automotive machine can not only inspect auto parts listed above, it can also inspect other items, such as ceramic knives, steel and aluminum castings, plastic products and etc.


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5. How does X-Ray Machine for Auto Parts Work?

Safety requirements and structural integrity of manufactured auto parts have very high international and national standards that they need to follow. The need to find a way to ensure the high industry standards gave rise to the popularity of X-ray machines for inspection of auto parts.

X-ray machines work by releasing radiation from an X-ray source to access the internal composition of auto parts like cylinders used in pistons, tires, wheels, and electro-mechanical parts. 

The radiation is absorbed by these auto parts with the residual radiation projected on a screen which displays an image. This image shows the auto parts in grayscale with white colors showing the parts that have absorbed the radiation. The dark color on the image shows part of the sample that has not absorbed the radiation but has allowed the X-ray energy to pass freely. This free passage of energy is usually as a result defects like porosity, cracks, and inclusions.

The analysis of these images is usually with the aid of a computer tomography which allows the image magnification depending on the magnification capacity of the X-ray machine.

Also, the voltage capacity of the X-ray tube in the machine is a great determiner of the clarity of the image seen on the screen. Thicker samples often absorb a lot of energy and without an X-ray tube with high voltage capacity, enough energy cannot be generated to produce a quality image.

6. How Much does a Automotive Inspection X-Ray Machine Cost?

A lot of factors can determine the cost of an automotive inspection X-ray machine. These factors can include the level of automation you desire as a highly automated X-ray machine is more expensive than an analog machine.

Also, the voltage capacity of the inbuilt X-ray tube can significantly increase the cost of the machine as an X-ray tube with more voltage power will cost more than one with low voltage requirements.

Generally, American and European manufacturers are more expensive than Chinese manufacturers and importing your machine can add freight cost to the already significant cost.

With the above information already on the plate, X-ray machines for automotive inspection can range from as low as $30,000 to as high as $600,000. These prices depend in varying proportions to the above-mentioned factors.

7. How to Choose the Right X-ray Machine for Auto Parts?

Choosing any X-ray machine should not be done in a hurry as the cost of an X-ray machine either analog or automatic is not cheap.

There are a few critical factors you should consider when choosing an X-ray machine for your auto parts inspection needs.

Firstly, consider the thickness of the thickest auto part you desire to inspect with the machine. This factor is critical especially for choosing an X-ray machine with a significantly higher voltage requirement. If you will be inspecting thick materials, then an X-ray machine with a High voltage X-ray tube is what you require. 

Secondly, if you already operate an automated automotive manufacturing line, then you should choose an automated X-ray machine that can fully integrate into the manufacturing line. This way, you will not experience any down time due to quality inspection of auto parts after their manufacture. 

Third consideration will be your budget since you can’t get something higher than your budget. Chinese manufacturers have very cost-effective X-ray machines that are less expensive than their European and American counterparts. 

Lastly, you should consider if a portable X-ray machine is what you need rather than a stationary machine that is fixed in the plant. This consideration will be handy if you carry out auto inspection on site rather than in the plant.


➢ UNC180S is your choice for the inspection of auto parts, if you are interested in the better quality and higher resolution image.  

X-Ray Machine for Auto Parts: FAQ Guide

No. The X-ray based nondestructive testing method does not leave residual radiation on the test object, since X-ray is an electromagnetic wave. X-rays are emitted in the form of energy, and not matter. That’s why like an ordinary light bulb when there is electricity shut down, the electromagnetic wave of X-rays disappears without leaving any residue on the part.

The common defects in the castings include especially holes and inclusions. So, let us understand the differences between loose holes, slag, shrinkage holes, pinholes, and trachoma in the defect.

There are two categories of defects:

1. Inclusion type

  • Slag: It occurs during the pouring process in the liquid metal in a timely manner without separation
  • Trachoma: If the sand debris gets entrained in the liquid metal, trachoma is formed. Due to the sand formation, it remains in the liquid metal into the cavity before it already exists during individual pouring.

2. Hole-type

  • Loosening: It is officially called shrinkage – a honeycomb defect due to inadequate shrinkage during the liquid metal solidification step.
  • Shrinkage hole: This defect is more serious, where the hole is usually accompanied by the upper part of the shrinkage area. It gets concentrated into one or several larger holes.
  • Pinhole: As per the formation mechanism, it is divided into many types. At times,
  • Slag porosity phenomenon may take place due to the slag or sand containing gas material formation.

X-ray testing can be directly incorporated into the manufacturing line where it is possible to inspect every radial truck, bus tire, and many passenger cars tires.

  • This X-ray inspection technique detects the anomalies such as spacing, position, and damage in steel wires.
  • Other issues that can be detected by X-ray inspection test include:

– Foreign objects

– Defects or missing wires in the belt plies

– Shifts and distortions in the reinforcement plies

– Air inclusions

X-Ray based non-destructive testing can detect wheels defects such as:

  • micro porosities to prevent the microsections formation
  • foreign bodies
  • clusters and blowholes
  • prevent surface-breaking flaws on the finished wheel

All these testing results are well documented and archived to provide prompt direct solutions for enhancing the quality of the casting process.

There are chances of typical casting defects in all casting techniques that include materials such as iron, magnesium, aluminum, or zinc.

X-ray based non-destructive testing can detect automotive casting defects such as:

  • Porosities like pores and blister formation
  • Thermal cracking
  • Dimensional changes as well as inclusions
  • Blowholes

Yes, it is possible to inspect multiple parts simultaneously to reduce the overall cost of the work. But it depends on the customer’s objective as well as the resolution level to visualize the results effectively.

Brake disc sand hole typically refers to the surface and interior part of the brake disc. Either, there will be sand particles, commonly called a ‘sand hole’. Else there will be gas, hole, or impurity formation. They are referred to as grit.

This appearance of grit on the brake disc surface can be viewed or identified directly through our naked eye. But if it appears on the interior part, the object should be processed before getting exposed, or it can be detected with the help of X-ray based nondestructive testing equipment. Obviously, X-ray based non-destructive testing equipment is the best choice.

X-ray based non-destructive testing equipment follows the principle of X-ray transmission by taking real-time photographs of the interior parts to detect the inner structure of the brake disc. For detecting the brake disc sand hole, you need not expose the workpiece and process. The X-ray inspection method is the most convenient and efficient technique. There are few defects like a sand hole, sand grain, sand block, and sand mass in the brake disc, which require casting workers to detect them. Just detecting these defects in the brake disc is not enough. It’s mandatory to evaluate these defects in terms of count, size, area, and so on, in order to improve as well as promote the product quality.

The hood of an automobile engine is made up of magnesium alloy, which can be used as steering wheel frame, transmission case, seat frame, wheel hub, instrument panel frame, etc.

How should we ensure the quality of magnesium alloy parts? 

This is where X-ray based nondestructive testing machines play a significant role. X-ray based non-destructive testing equipment can be used to detect magnesium alloy parts, for any defects at a glance via real-time imaging. It can get connected with the production line of the factory, implement the complete automatic loading and unloading manipulator, decrease the manpower cost, understand the integration method of production, testing, and evaluation thereby improving the production efficiency. With maximum resolution, high definition qualitative imaging, automatic defect recognition, and the automatic evaluation function, this entire system can inspect the magnesium alloy parts automatically and thoroughly with 100% accuracy in real-time.

Before knowing the application of X-ray inspection to detect sand hole, it is mandatory to understand the formation of a sand hole in the castings.

A sand hole typically refers to a hole formed by impurities or gas on the surface or internal part of the casting. The appearance of sand holes on the casting surface is easily visible. But the sand holes on the internal part cannot be seen easily. Only when these internal and surface casting sand holes are detected, they can be rectified by grinding, welding, or scraping. This is where X-ray based non-destructive testing equipment solves the purpose.

The X-ray based non-destructive testing equipment manufactured by Uni X-ray technology can effectively detect sand holes in castings. At first, this equipment can precisely detect the internal structure of the casting through the X-ray transmission principle. The defects like a sand hole, shrinkage cavity, and cracks can be easily viewed on the computer screen. Hence, it’s possible to improve the quality of the product by promptly finding out the abnormality in the casting production process.

Not only the inspection quality but also the mechanism of this equipment is too convenient. It is enough to keep the test piece on the machine tray. Within a few seconds, the entire result about the quality of the test piece can be viewed via the computer screen. This efficient and intuitive result can improve the casting production by finding the cause of the issue in every step, and rectifying it at the right time. Checking the cause of the issue includes analysis of the size, area, defects, etc. Hence, it is possible to improve the product quality and affordability by drastically lowering the negative effects to the minimum level.

Thus, X-ray based non-destructive testing equipment manufactured by Uni X-ray technology is extensively used in the assessment of automobile parts, pressure vessels, engineering parts, steel cylinder, aluminum iron castings, and other industries.

The quality of the wheel usually depends on the method of its manufacturing and prompt inspection.

Wheels are manufactured in two forms: Steel wheels and light alloy wheels including magnesium alloy and aluminum alloy. The lower version of automotive models or trucks uses steel wheels, while most of the family cars are integrated with aluminum alloy wheels.

According to the range of expenses, there are varied methods of wheel manufacturing like gravity casting, low-pressure casting, as well as forged wheels. The cost of forging is anyway costlier than the ordinary casting, which suits the high-end modification market. Since the low-pressure casting has high durability and a higher yield rate, it is suitable for mass production. Hence, many car manufacturers prefer this method of manufacturing.

Depending on the manufacturing method, it’s possible to estimate the quality and rate of the wheel. Irrespective of the manufacturing method, an inspection of the manufactured wheels is mandatory to ensure its quality. This is where the X-ray based NDT method plays a significant role.

There are numerous factors that affect the value of castings, like meager control of raw materials, unreasonable structure design, unreasonable procedure plan, improper production operation, etc. All these factors may produce a variety of defects in castings, such as bubbles/pores, inclusions, cracks, and loose.

X-ray based nondestructive testing is the most preferred method to detect internal defects in castings so that it can improve production efficiency and avoid material wastage. Cracks in the castings can be viewed as light-colored lines in the final X-ray inspection image. Similarly, inclusions are viewed as a dark block, and loose as a light-colored nebulous (hazy) form.


The quality of the car can be assessed in four stages during the entire production process.

1. Pre-production inspection

Our automotive X-ray machine can generate precise metrology data during pre-production by validating the conformity of the component with original designs to confirm its quality. In order to satisfy PPAP requirements, we find highly precise dimensional data for auto parts with complicated internal and external geometries, thereby validating the function of multi-material assemblies. 

2. Production inspection

We deliver offline inspection solutions during the production phase that can confirm the quality of automotive parts before they reach their final destination. This step is perfect for high-value component applications as well as performance racing. The inspection with automotive X-ray machine during the production phase can be conducted at random or specific intervals to recognize the defects, confirm dimensions, as well as validate production steps. This phase can also inspect profile complex surfaces and detect out of tolerance features in production parts.

3. Part Sorting

For warranty, quarantined, or recalled automotive parts, our high-speed X-ray based NDT inspection services can reduce uncertainty by providing a traceable and repetitive inspection. We provide confidence to our manufacturers to go ahead with their projects, isolate suspect parts, and reintroduce valid parts back into the production phase. the offline X-ray machine is considered as another option for part sorting and inspection in lower volume.

4. Failure Investigation

The automotive X-ray machine is a vital tool for failure analysis of automotive components and assemblies. As a non-contact nondestructive testing method, X-ray inspection reveals internal failures without damaging the component and preserving its natural condition. Our automotive X-ray machine not only saves your expenses but accelerates the complete inspection process by instantly delivering qualitative data for failure analysis.

The quality of the auto parts castings typically includes internal quality, external quality, and service quality.

  • External quality – refers to the roughness of the casting surface, shape deviation, size deviation, weight deviation, and defects.
  • Internal quality – refers to the mechanical properties, physical properties, chemical composition of the casting, metallurgical organization along with the internal defects such as the presence of cracks, holes, inclusions, segregation, and other conditions within the casting.
  • Service quality – refers to the strength of the castings in varied conditions, including corrosion resistance, wear resistance, heat and cold resistance, shock absorption, fatigue, and other properties like weldability, machinability, and other technological properties.

Varied inspection methods including X-ray, γ-ray, eddy current and ultrasound can check and determine the internal quality of the castings. With the help of the ray detection effect, it’s possible to predict the size, shape, type, and distribution of internal defects in the castings.


To sum up, the advances in the automotive industry have grown in leaps and bounds and so is the level of quality inspection of auto parts as this is the only way to ensure the production of safe, quality products.

However, X-ray auto inspection has made it possible to meet the high industry standards for safety and quality.

Nonetheless, you should take your time when shopping for an X-machine as you don’t want to purchase a machine in a hurry and find out that you are stuck with a useless piece of device. Diligently consider the factors highlighted in this guide and you should be fine.

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